The Bujinkan interpretation of kata using an uke sounds similar to the Parker/Tracy Kenpo karate system of techniques. The format is a good way to learn how to position your body in relation to your attacker.
I employ concepts from Kali (especially Dog Brothers stick fighting), Muay Thai, and Brazilian jiujitsu to form my technique matrix. All share an emphasis on real time, real contact training, which I feel many systems lack. You can only punch the air or perform techniques at reduced power or speed so much until you need to test them out and see if they really work for you.